|
|
Post by colly0410 on Sept 16, 2014 9:58:10 GMT -5
When I was at Moorgreen TC you could hear the ventilation fan roaring in the upcast shaft airlock & the pit bottom, they used an axial flow vent fan. (in 1968/69) In Hucknall upcast airlock & pit bottom it was quite, they used a centrifugal vent fan. I've also been in the upcast airlocks at Linby & Newstead, they were both quite, what sort of fan they used I've no idea. Are axial's noisy & centrifugal's quite? Also what sort of fan was most popular? What advantages/disadvantages of each?
|
|
|
|
Post by John on Sept 16, 2014 11:47:16 GMT -5
When I was at Moorgreen TC you could hear the ventilation fan roaring in the upcast shaft airlock & the pit bottom, they used an axial flow vent fan. (in 1968/69) In Hucknall upcast airlock & pit bottom it was quite, they used a centrifugal vent fan. I've also been in the upcast airlocks at Linby & Newstead, they were both quite, what sort of fan they used I've no idea. Are axial's noisy & centrifugal's quite? Also what sort of fan was most popular? What advantages/disadvantages of each?
Most of the old pits had old centrifugal fans as the main vent fan, development aux fans were axial flow.
When I was at Boulby, we had one 1350hp axial flow fan on the surface forcing air down vent tubes until the fan chambers were built underground. Then the new fan was installed underground, and the surface fan brought underground. One fan on the north side, other the south side giving a balanced ventilation system extracting air and forcing it up the rock shaft.
The fans themselves looked like multi blade aircraft propellers that could be altered to give more or less air as required.
I think Linby had an old centrifugal fan, as did Clifton. Clifton also had the old fan, about 40 feet in diameter, a Waddle??? Not in use, it used to be steam driven, but still a centrifugal fan.
Cotgrave had an axial flow fan. |
|
|
|
Post by John on Sept 17, 2014 13:50:37 GMT -5
When I was at Moorgreen TC you could hear the ventilation fan roaring in the upcast shaft airlock & the pit bottom, they used an axial flow vent fan. (in 1968/69) In Hucknall upcast airlock & pit bottom it was quite, they used a centrifugal vent fan. I've also been in the upcast airlocks at Linby & Newstead, they were both quite, what sort of fan they used I've no idea. Are axial's noisy & centrifugal's quite? Also what sort of fan was most popular? What advantages/disadvantages of each?
Most of the old pits had old centrifugal fans as the main vent fan, development aux fans were axial flow.
When I was at Boulby, we had one 1350hp axial flow fan on the surface forcing air down vent tubes until the fan chambers were built underground. Then the new fan was installed underground, and the surface fan brought underground. One fan on the north side, other the south side giving a balanced ventilation system extracting air and forcing it up the rock shaft.
The fans themselves looked like multi blade aircraft propellers that could be altered to give more or less air as required.
I think Linby had an old centrifugal fan, as did Clifton. Clifton also had the old fan, about 40 feet in diameter, a Waddle??? Not in use, it used to be steam driven, but still a centrifugal fan.
Cotgrave had an axial flow fan.
I think the Waddle fans were made up of flat boards mounted on a steel structure like an old steamboat paddle.
Also, the motors usually used for the modern centrifugal fans were auto synchronous motors, the speed of which could be altered with certain parameters. |
|
merlin
Shotfirer.
prop and lid
Posts: 64 
|
Post by merlin on Apr 29, 2015 11:38:24 GMT -5
which colliery in britain had the first fan wynnstay pit in ruabon n wales was sunk in 1852 believed to be first in the country the fan house isthere today colliery closed in 1925
|
|
|
|
Post by dazbt on Apr 29, 2015 13:05:02 GMT -5
which colliery in britain had the first fan wynnstay pit in ruabon n wales was sunk in 1852 believed to be first in the country the fan house isthere today colliery closed in 1925 extract “Agricola's De Re Metallica, produced in 1556, is profusely illustrated. A number of the prints show ventilating methods that include diverting surface winds into the mouths of shafts, wooden centrifugal fans powered by men and horses.” web.mst.edu/~tien/218/218-VentHistory.pdfIn 1727 John Theophilus Desagulier demonstrated a fan designed to ventilate coal mines, one was installed in The Houses of Parliament (a pit of a kind I suppose). In 1849 a 6m radius steam driven fan was installed at Gelly Gaer Colliery |
|
|
|
Post by John on Apr 29, 2015 13:12:50 GMT -5
Lots of collieries had steam operated fans in the 1800's, Waddels and Guibals(sp) seemed to be the most common types. My first pit still had it's first fan installed when the pit was sunk in 1868, wasn't in use though, we had a modern centrifugal fan, the old one was a 40 foot diameter Guibal(sp) fan operated by a steam engine.
Bit more from my notes on Clifton.
40Ft Guibal fan, 12ft wide, taking on air from both sides, driven by a compound and condensing engine, high pressure cyl 18 ins diam, low pressure cyl 33ins diam, 2ft 6ins stroke.
|
|
